Indicating-scale.



Patented June 13, 1916.

a sums-sum 1;

L. E. BAKER.

INDICATING SCALE.

A TTORNE YS.

M MEN TOR.

APPLICATION FILED AUG.30, 19l5.

WITNESSES L. E. BAKER.

INDICATING SCALE.

ATION HLED AUG 30 3 SHEETS-SHEET 2- APPL 1915.

1,1 86,965. Patented June 13, 1916.

WITNESSES: VENTOR, 64 44 M /Q%; /M I 0%,, [av MW ATTORNEYS.

UNITED STATES PATENT OFFICE.

LINNAEUS E. BAKER, OF FORT WAYNE, INDIANA, ASSIGNOR TO WAYNE OIL TANK 8a PUMP (30., A CORPORATION OF INDIANA.

INDICATING-SCALE.

Specification of Letters Patent. Patented J 11119, 13, 1916,

Application filed August 30, 1915. Serial No. 47,970.

To all whom it may concern:

Be it known that l, LINNAEUS E. BAKER, a citizen of the United States of America, and resident of Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful. Improvements in Indicating-Scales, of which the following is a. specification.

This invention relates to improvements in indicators for nvasuring pumps and the object thereof is to provide means in connection with a measuring pump for indi cating various stages of the complete discharge stroke of the pump, preferably equal fractional portions thereof, and to include adjustments for the several parts to enable the operator to set the device so as to compensate for inaccuracy in manufacture and wear.

The invention applies particularly to pumps of the reciprocating type for dispensing liquids, and wherein the pump cylinder and the length of the stroke of its plunger are proportioned so as to effect the discharge of a definite unit quantity of liquid upon each one complete cycle of movement. The present purpose contemplates means of adjustment for the pump to more or less limit its stroke to the point where the discharge therefrom, upon each complete stroke thereof, will be of a definite unit quantity, and also, the intent is to provide a scale and pointer with suitable adjustments so that the same may be readily shifted to accurate working positions compensatingly as the adjustments of the length of the stroke of the pump become necessary to insure an accurate quantitative discharge.

The object of the invention is accomplished by the construction illustrated in the accompanying drawings in which:

Figure 1 is an elevation of a pumping mechanism showing front view of the in-- vention in connection therewith; Fig. 2 is a view of Fig. l in a plane at right angles thereto; 3 is a front view of the scale plate and a portion of the adjustable index, and showing also a series of lines drawn from a point that lies in the horizontal plane of the lowermost scale line on the plate, the lines being radially disposed and intersecting and presenting relatively different angles to the plate; and Fig. 1 is a modification of Fig. 3.

Similar reference characters indicate corresponding parts throughout the several views and referring now to the same: (5) is a pump proper of the reciprocating piston type; (6) is a standard mounted upon and supported by the pump proper; and (7) is a pipe connected at its lower end with the pump and closed at its top by a cap (8) and serves as an expansion chamber for the pump as well as a partial support for the head (9) on the standard. The pipe extends through the head and is rigidly secured in connection therewith by means of a setscrew (10). The head is for the purpose of containing the operating mechanism for the pump which is not disclosed herein inas much as any of the well known operating mechanisms for driving the pump may be employed in conjunction with the present invention.

The pump has a vertically reciprocating pump-rod (11) that extends through the head (9), and has fixed thereon a rack-bar (12) adapted to be actuated by such operating mechanism as above referred to. An

adjustable stop (13) consisting of a screw located in a fixed lug (14:) and located in the path of a projection (15) that extends from the rack-bar (12) serves to limit the upward stroke of the rack-bar and pumprod connected therewith, and a nut (16) having screw-threaded relation with the upper end of the pump-rod and being adapted to come into contact with the upper face of the head (9) serves to limit the downward stroke of the pump-rod.

A graduated scale-plate (17) having graduation marks (18) thereon, arranged in a particular manner, is mounted in fixed relation with the standard andin a vertical plane parallel with the pump-rod. The plate (17) is secured to the standard by means of screws (19), the holes (20) in the plate for the reception of the screws being made of suflicient diameter as to admit of slight vertical adjustment of the plate.

A bracket (21) extends outwardly from the rack to which it is securely attached, and in the outer end of the bracket is adjustably secured an index (22) arranged to be horizontally shifted in the bracket. A screw (23) in the bracket serves to bind the index in its various adjusted positions. The pointed end of the index extends immediately in front of the plate and moves vertically with the rack-bar as the pump is )aratus oi the LA make provision to adius-ah Tl alter the stroke of the pump fell asto )roi'ide adjustment for the indicating mechanism to compensate for such Yar at accurate quanti it is essential shall he so pro.

each c rcle oi quantity; tional stages o" charge ctr; essential tn A that its length ne enti e s.

will be traversed by the index correspondhigh: and also PlOiNiitlOlliitQF t'iruuehout the various fractional stages of the operation of the pump. To meet the above contingencies the horizontally adjustable index is arranged to move with the rackhar and pump-rod attached thereto and scale-plate is fixed upon the standard in parallel relation with the pump-rod and positioned so that the index will he mo ed l-llGl'GOYGl immediately in front of the scale during the cycle of the pump ant. thus intlicate the various stages in fractional parts throughout its movement. In order to make the seal conform in length to the Various lengths of stroke to which the pump may be adjusted. the graduation marks have been particular v arranged so that when the stroke or" the pump has been, through s adjustments. limited to the length of Oh: required for the dischar ze of a definite unit quantit of liquid. the index through its adjustuie may he made to tr; verse the scale a llil terminate in its inm'eiuent at the graduation lines rcs iiectively at the upper and love ends of the scale. Thus, although the length of the stroke of the puino mav he al tereil. the point index carried h the rack moved with pump-rod may )e ad justahlv shifted so at to register precisely with the graduation lines and the-"J by indicate correctly the Jar ous stages throughout the coun i l in 3 the pump.

In operatin the intention attachel'l to tl pump-rod is mo? lowermost position. at which st: e'e he of the index (7? l .ched thcrct the me horizoi al plane as the loweri te trolre t peratell b screr. (13) is disclia limite-L 1 dis ie inte *etiou "cu (it?) atte i'operl. ad he orizontallv until upperu'iost o'l. 5:11

scale. desif; then secured 'eans oi the setus is then in readu In s L a Q a "or operation.

termine the graduation le extend laterallv on i one end theieoi extendii in horizonwith the other graduation lines :uccessive order with increi l will in Moontingli' at e of the stroke of the l US i? rated h the mo; upon tie scale the full u'cll the ractiona l porshown in F "s. l and o {iraduation l i -llPflilYO o'l' the quantity of fluid dis at each full stroke and the its terms being those oreuia 'sed uid measure. 7

1' Fig. -lis shown a scale-plate (1) having arranged thereon a series of graduation lines (18) and also a cori Kline series i of characters In this instance as in the former, the lowermost eraduation line 38) is made horiroutal and the succeei ine;

lines are arranged in successive rder with increasing inclination. The corresponding series of numerals (which are not intended reference numerals) des' note the monerv value ot' the liquid dischar d hr the pump throughout the corre poiu of its stroke. Thus the iuventil'ai mar he applied to the pump so tha" the leis will indicate upon the scale l.- position either the various quantities of lluid discharg'z ed hr the pump at any oi its storthc monctarIv the corresponding value of such quantities at stages.

What I claim is 1. In apparatus 0;: pump proper having: tion therewi h to; actm ing inclination from one end to the other he class described a and having also distinguishing characters applied to the various graduation lines.

2. In apparatus of the class described, a pump; a mechanism for actuating the pump; a horizontally adjustable index arranged in connection and movable with the actuating mechanism; and a scaleplate in fixed relation with the pump and in position to be traversed by the index, said plate having graduation lines thereon arranged in radial relation with each other.

3. In combination with a pumping mechanism, a laterally adjustable index in connection with the actuating mechanism of the pump and adapted to be moved therewith, and a stationary scale-plate positioned to be traversed by the index and having there on a series of laterally disposed graduation lines suitably designated and arranged radially relative to each other.

4;. In combination with a pump having actuating mechanism therefor, an index adjustably secured to and adapted to be moved by the actuating mechanism, means for laterally adjusting the index, and a stationary scale-plate positioned to be traversed by the index and bearing a series of laterally disposed graduation lines arranged respectively in radial relation with each other.

5. In combination with a reciprocating pumping mechanism having a movable index thereon, a stationary scale-plate positioned to be traversed by the index and bearing a series of radially disposed graduation lines; and means for adjustably shifting the index laterally relative to the scale-plate.

In testimony whereof I aflix my signature, in presence of tWo witnesses.

LINNAEUS E. BAKER.

Witnesses:

A. D. HEATH, W. G. BURNS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents. Washington, D. G. 

